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LI Ruiyu, SUN Yuxin, FU Yanshu, SUN Qiran, ZHAO Yayun. Formation and characterization of Al-Al explosive welding interfaces[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(5): 92-95,107. DOI: 10.12073/j.hjxb.20170520
Citation: LI Ruiyu, SUN Yuxin, FU Yanshu, SUN Qiran, ZHAO Yayun. Formation and characterization of Al-Al explosive welding interfaces[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(5): 92-95,107. DOI: 10.12073/j.hjxb.20170520

Formation and characterization of Al-Al explosive welding interfaces

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  • Received Date: July 01, 2015
  • In this paper, a series of Al-Al quasi-symmetric explosive welding experiments were carried out and then the samples with variation charge ratio were obtained. Furthermore, the processes of Al-Al oblique collision were simulated based on smooth particle hydrodynamic method (SPH) in Autodyn, and it was found that the simulation results were in agreement with the experiments. It is can be conclude that, first the wave length and amplitude increased with progressive increasing of charge ratio, as well as the thickness of re-entrant jet. In addition, the interfaces became more continuous. Second, the influence of charge ratio on re-entrant jet velocity was rare. Third, the shear stress of base plate enhanced with the increase of re-entrant jet, which leads to the interface gradual changing from straightness to wave. The variation laws of Al-Al explosive welding interfaces with charge ratio and the numerical method used in this paper will be beneficial for correlation research.
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